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primary topic: Interfacing Rydberg atoms with light and observing their interaction driven dynamics

Interfacing Rydberg atoms with light and observing their interaction driven dynamics
type: Article
abstract: This thesis investigates new phenomena that arise when light is strongly coupled to an interacting atomic gas. For this, a new apparatus has been built which allows to create ultracold and dense atomic samples and to detect individual atoms in high-lying atomic states, so-called Rydberg atoms. Strong light-matter coupling is achieved using the collective coupling of the atomic cloud to the light field under conditions of electromagnetically induced transparency (EIT). In experiments on EIT involving non-interacting Rydberg states, we characterize the light-matter coupling and demonstrate the first combined optical and matter based probing of EIT. By coupling to strongly-interacting Rydberg states, we investigate the effect of interactions which we observe as a strong nonlinear optical response of the atomic gas as well as in the emergence of strong correlations between the hybrid quasiparticles associated with the strong light-matter coupling. We employ the nonlinear response of the atomic cloud to image Rydberg atoms immersed in the atomic cloud. In a theoretical proposal, we show that this novel imaging technique allows to investigate many-body Rydberg states with single particle sensitivity. Using the proposed imaging method, we demonstrate imaging of small numbers of Rydberg atoms with high time-resolution in single shot experiments. In experiments exploiting the dipolar exchange interaction between Rydberg atoms, we employ the new imaging technique to follow dipole-mediated transport of Rydberg excitations through the cloud. The transport dynamics is determined by the continuous spatial projection of the electronic quantum state under observation and features an emergent spatial scale of micrometer size induced by Rydberg-Rydberg interactions.
date: 2014
author list: authors
type: EPrint
type: DoctoralThesisEPrint
is part of: repository
has document: Interfacing Rydberg atoms with light and observing their interaction driven dynamics (PDF)
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subject: 530 Physik

Interfacing Rydberg atoms with light and observing their interaction driven dynamics (PDF)
type: Document
has file: thesis.pdf
has part: thesis.pdf

Georg Gotthilf Günter
type: Person
given name: Georg Gotthilf
family name: Günter

Interfacing Rydberg atoms with light and observing their interaction driven dynamics (Other)
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Interfacing Rydberg atoms with light and observing their interaction driven dynamics (Other)
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Interfacing Rydberg atoms with light and observing their interaction driven dynamics (Other)
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Interfacing Rydberg atoms with light and observing their interaction driven dynamics (Other)
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Interfacing Rydberg atoms with light and observing their interaction driven dynamics (Other)
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primary topic: Interfacing Rydberg atoms with light and observing their interaction driven dynamics

530 Physik
type: Concept
preferred label: 530 Physics @en